You want your team to start on D in the best possible position. This happens when the best puller on the team (NOTE: not the best thrower) pulls. Every pull is huge no matter if it’s to start the game or if you’re pulling on universe point (game tied – next point wins). A bad pull will give the other team an advantage before they even catch the disc so you want to have the best pull every time.

Since the point of the pull is for the other team to start with you as deep in your endzone as possible, the ability to collect the pull and get the disc moving is crucial to keep the defense on their toes.

Maxime - More Surprising Findings from the World of Biomechanical Analysis!

Hey Melissa!
I understand the most of the explications on this page, but I didn't understand what's wrong with the hands shaking? I mean, this is really how beginners throw I remarked that one coaching cue I constantly heard about is "use your wrist when you flick the disc" or something like that.
And... You mean that we need to use the flipping the pie... I don't really understand well how to transfer it to a throwing mechanics... I mean... By your explanation I refer myself to the flick throw mechanics Rowan McDonnell show in one of his video. He take the disc, do an abduction with his forearm (at this moment, the disc is up ready to throw like an archer who is ready to shoot, and the forearm face down in a ~45 degrees), so his wrist is in a pronation position (the pie is going down) and when he throw he place his wrist in a supination to proantion position. I tried to figure out the entire throwing mechanics.
He explain here how to do this at home (to practice the motion) : https://www.youtube.com/watch?v=49u9-IznjRc

Imagining Ultimate As A Major Sport - Ultimate Rob - How To Choose an Ultimate Frisbee Team

[…] people tend to think of ultimate frisbee as a fairly casual, everyday sport. We play in parks and pick our teams for recreational leagues, and some play in fairly competitive clubs and organizations in college. […]

David Fawcett - Frisbee: Beyond Catch and Throw

rotation around the z axis

Phong - Forehand Mechanics That Aren’t Taught

Ho Johnny and Rob, thanks for the extreme detailed about the forehand mechanics. Could you discuss the science behind the angle between the disc and forearm please? Why does it have to be 160 degree?